Science 5.5a

The diagram above shows one container with oil and water and another with oil and a cork. Which diagram below shows what most likely would happen if oil, water, and the cork were all put in the same container?

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Tags

NGSS.MS-PS1-2

Which of the following is a good conductor of electricity?

• glass rod

• cotton string

• plastic tubing

• copper penny

A teacher mixes a white powder into a beaker of water. The powder cannot be seen in the water. The teacher then heats up the water until it evaporates and the powder can be seen again. Which of the property of the powder is the teacher demonstrating?

• solubility

• Density

• Conductivity

• Mass

Tags

NGSS.MS-PS1-2

5 Jars with 92* C water are set up with thermometers. 4 jars are wrapped equally with different material. One jar is kept unwrapped as a control. After 10 minutes the temperature is checked and noted in the above chart. Which property of the material is most likely being tested?

• state of matter

• Thermal energy insulation

• Thermal energy production

• ability to conduct electricity

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A student reads the label on the salad dressing above. Why would the students shake the salad dressing well before using it?

• Vinegar and oil have different densities

• Vinegar and oil easily form a solution

• Vinegar and oil both contain water

• Vinegar and oil are both liquids

Tags

NGSS.MS-PS1-2

What is the difference in grams between the total mass of the liquid substances and the total mass of the solid substances in the above chart?

• 298

• 130

• 168

• 428

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

• The metal pan creates thermal energy.

• the metal pan insulates thermal energy.

• The metal pan conducts thermal energy.

• The metal pan reduces thermal energy.

Tags

NGSS.MS-PS3-3

Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be removed. The objects include foam cups, keys, and coins. Which of the following explains a useful method for removing some of the objects?

• The keys and coins are less dense than water, so they can easily picked off the bottom of the pool by divers.

• The foam cups have the same density as water, so they can be crumbled up for removal by the pool filter

• The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.

• The keys and coins have the same density as water, so they can be washed away when the pool is drained.

A cook uses the ingredients listed above. Which table below shows the physical properties of these ingredients when placed in hot water?

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Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A teacher gives a student 4 clear sealed containers. Each container holds a different substance. The students record their observations about each substance. Based on these observations, which container most likely holds only gas?

• Container 1

• Container 2

• Container 3

• Container 4